Question

Find f(-2).
f(x) = 9x2 - 5x + 2
A) 14
B) 18
C) 28
D) 48

Answer 1

f (-2) = 9(-2)^2 - 5 (-2) + 2<br />f(-2) = 36 + 10 + 2<br />f (-2) = 48

Answer 2

Answer: The answer is (D) 48.

Step-by-step explanation:  Given that the function f(x) is defined as follows:

$f(x)=9x^2-5x+2.$

We are to find the value of f(-2).

To do so, we need to put the value of x as - 2 in the given definition. So, substituting x = -2, we get

$f(-2)\\\\=9(-2)^2-5(-2)+2\\\\=9\times 4+10+2\\\\=36+12\\\\=48.$

Thus, the option (D) 48 is the correct answer.